DVD-RW drive incompatibilities

As if we needed more headaches when it came to recordable DVDs (you know,
this whole DVD-R versus DVD+R format war that's been raging), there's a possibility that those new 4X speed DVD-RW
discs that are coming out won't work in drives that can only record at 1X or 2X speed. The problem is that they had to
make 4X speed DVD-RW discs more sensitive to laser light to faciliate faster recording, that makes them not work so
well with slower burners. Pioneer's DVR-A06 (pictured and Sony's DRU-510A and DRX-510UL are among the drives
affected.